Froth promoter



FIG. 1 is a front perspective view of an embodiment of a froth promoter;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a front perspective view thereof. 

CLAIM The ornamental design for a froth promoter, as shown and described. 